
Children experience VR and AR equipments in Hefei, capital of east China's Anhui Province, May 20, 2017. Various activities are held across China during the 2017 National Science and Technology Week. (Xinhua/Zhang Duan)

Children experience VR and AR equipments in Hefei, capital of east China's Anhui Province, May 20, 2017. Various activities are held across China during the 2017 National Science and Technology Week. (Xinhua/Zhang Duan)